Frame for motor-bicycles.



E. Y. WHITE.

FRAME FOR MOTOR BIGYGLES.

APPLICATION FILED MAB. 9, 1906.

19753 Patented 00t.14,1913.

3 SHEETS-SHEET 1.

@Vitnaoaeo E. Y. WHITE.

FRAME FOR MOTOR BIGYGLBS.

APPLICATION FILED MAR. 9. 1906.

Patented Oct. 14, 1913.

3 SHEETS-SHEET 2.

3] H cantor,

COLUMBIA PLANOORAPH col, WASHINGTON, n. c.

E. Y. WHITE.

FRAME FOR MOTOR BIGYGLES.

APPLICATION FILED MAR.'9, 1906.

Patented Oct. 14, 1913.

3 SHEETSSHEET 3.

III

I nun, I K

QNMUI W Mill/[Ill]! Witnesses.

COLUMBIA FLA H c0.,wAsmNuToN. u. c.

n era FRAME FOR MOTOR-BICYCLES. I

Specification of Letters Patent.

Patented Got. 14, 1913.

Application fiIedMarch S, 1906. Serial No. 305,152.

To all whom it may concern Be it known that I, EDWARD Y. WHITE, citizen of the United States, residing at San Antonio, in the county of BeXar and State of Texas, have invented certain new and useful Improvements in Frames for Motor-B1- cycles, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to spring frames for motor bicycles.

The object of the invention is to produce a frame in which the motor engine may be conveniently and compactly located, and which frame shall be strong and stiff enough for usage on ordinary roads, and sufliciently yielding to afford a comfortable seat, and to prevent breakage under ordinary conditions of usage.

The invention involves in its construction a combination of mechanical elements forming a cushion for the motor and accessories, as hereinafter described and claimed.

Figure 1 is a side elevation of so much of a bicycle as is necessary to show the invention in a general way. Fig. 2 is a top plan view of top tube and connections. Fig. 3 is an elevation of the rear fork, and spring head thereof. Fig. 4 is a broken cross section of the front end of straps and hinge hereinafter referred to, showing part of tube 16. Fig. 5 is an enlarged detail elevation of the straps and hinge whereby the sections of frame are jointed. Fig. 6 is a plan and Fig. 7 is an elevation of the lower rear frame member. Fig. 8 is a side elevation of the lower tube (front) of the frame. Fig. 9 is a bottom view of the lower front tube of frame. Fig. 10 is a broken cross section of rear end of hinge and seat post tube. Fig. 11 is a vertical central section of the spring head of the rear fork. Fig. 12 is an elevation of the slotted tube of the spring fork head. Fig. 13 is a vertical section of the cup piece of spring head. Fig. 14 is a bottom plan of the cap 39 forming the upper end of slotted tube 38. Fig. 15 is a top plan of the lower spring tube, and Fig. 16 is a broken vertical section of the lower spring tube.

The engine or motor 1, of usual form, rests in a cradle, which cradle is composed of curved straps 3, one strap at each side of the engine casing, and both connected to a head 4, which head has a socket or pintle for connection with the seat post 5, said seat postbeing of usual construction. The straps 3 may be secured to the engine casing by screws or bolts 6. The seat post 5 is rigid with the top bar 7 of the frame, which bar is hinged to a sleeve 8 rigid with the steering head 9, through which head 9 the front fork 90 passes. Bar 7 has an inclined arm 12, which arm has means of attachment to the head of the motor, as by means of screw 13. The bars of the frame are generally tubes, as is usual. The engine, the straps 3, and post 5, the top bar 7, and the arm 12 connected to the engine, thus form a triangle, which in itself is rigid. The attachment of the straps 3 to the engine permits some latitude in the style of engine which may be at tached to the frame.

The front fork 90 passes through sleeve 9 and turns therein, as is common. Sleeve 9 has a rigid collar 15, and to this the lower front bar 16 is hinged. This bar 16 curves below the engine, and has a cross head 29, which is hinged to the head 4 at 32 just in rear of the engine or motor cradle. (See Figs. 1 and 5.)

The lower rear bars 17, 17 of the frame are oval in form and tapering. Both these bars are rigidly connected to a cross T 18, which T is hinged between the straps 3 at the front of the engine casing. The bars 17 thus straddle the frame bar 16, under the engine. Bars 17 are rigidly connected to socket 20, which socket 20 forms a bearing for the usual pedal shaft. The socket 20 is also rigid with the lower side bars 22 of the rear part of the frame. Bars 22 are rigid with the rear axle bearing 23. The rear fork 24 is pivoted or hinged to the rear axle bearing at 30. A tube 25 is rigid with the rear fork, and serves as a receptacle for the lower spring 33. Tube 25 has curved slots 34 in its upper end 35, which end is otherwise closed. A cup 36, preferably secured by screw threads to the lower end of tube 25, serves as a means for assembling the parts which form the spring head of the rear fork. A slotted tube 38, having one end closed as at 37, has its slotted end passed through the curved slots 34 of the tube 25. The slotted end of the tube '38 is externally screw passes over the slotted end of tube 38, and

engages with the screw. thread thereof. A spring 47 is inclosed in this cup, above the end 35 of tube 25. Cup 44 telescopes over tube 25, and can close down over said tube when the three springs \inclosed are compressed. But cup 44 cannot be removed from the rear fork, except by unscrewing from tube 38, and tube 38 can only be removed from tube 25 by withdrawal from the lower end there of. Cup 44 has a hinge member 46, which is pivoted to the seat post near the top end thereof, as at 47.

A weight on the seat post tends to coinpress the springs in the rear fork head. The frame members 5 and 16 turn slightly at the point of their pivotal or hinge 0on nection to the engine, and the wheel base of the machine elongates, when Weighted. As the rear lower frame section is hinged or pivoted, at 31, in front of the engine, and the front lower frame bar is hinged or pivoted, at 32, in rear of the engine, both sections being connected to the saddle on which the engine rests, this elongation is permitted.

The engine stands in the frame in inclined position, with its center of gravity about at the center of the frame, and there is space above the engine for the usual gasolene supply tank.

The pedal cycle, and other parts not herein described,

for steering, supporting the seat, etc., may

be of usual or approved construction.

What I claim is:

1. The combination with the main frame, steering head and rear forks, of a front bar pivoted at the front to thehead and at the rear to the main frame, and a rear b'a'r connected to the rear fork and pivoted at its forward end to the main frame. v

2. The combination with the-main frame, steering head and rear forks, of a front bar pivoted at the front to the head and at the rear to the main frame, and a rear bar eonnected to the rear fork and pivoted at forward end to the mainframe forward of 1 the pivotal point of said front bar,

3. The combination with the main frame steering head and rear forks, of a front bar pivoted at the front to the head and at the oted at the rear to the rear fork and at the front to the main frame.

4. The combination with the main frame steering head and rear forks, of a front bar pivoted atthe front to the head and at the connection for driving the bi- 3 5. In a frame for motor bicycles, a triangular frame section of which the seat post and 'motor form a part, and a rear frame section consisting of lower bars hinged near the front of the engine, extending to the rear and adapted to receive the rear axle, and a yielding connection from said lower bars to the seat post.

6-. In a frame for motor bicycles, the central frame section having a cradle for the motor, lower frame bars hinged to the front of said cradle and extending to the rear axle, the steering head, and a lower frame barpivotally connected to the steeringnead and extendingpast the hinge of the lower frame bars to a hinge at the rear of the motor.

7. he combination, in a frame for motor for connection to the engine, a rigid frame section of which said cradle is a member, a front lower frame connected tothe rear of said cradle, and a rear lower frame bar connected to the front of said section, said bars extending past each other, and yielding connections from the extremes of said lower bars to said rigid frame section. V

8. In a motor bicycle frame, the combina tion of a central rigid triangular framesection, a steering head hinged to said rigid section, a front lower bar hinged to said head and to the rigid section, a rear lower bar hinged to the rigid section and having the rear wheel bearing, and a yieldingextensible member conneoting the rear wheel bearing to the upper part of the rigid frame.

9. The combination 'of a rigid frame carrying a motor and comprising a seat mounting, a steering head pivoted to saidfframe and a front bar pivoted to said frame and to the steering head.

10. The combination of a rigid fram'e'carrying a motor and comprising a seat mount ing, a steering head pivoted to said frame, and a front bar pivoted to said frame and to the steering head, a lower rear fork pivoted to said frame, and an upper rear fork connected to the lower fork and pivoted to said frame. p

11. The combination of a -rigid frame earrying a motor and comprising a seat mount- 5 ing, a steering head pivoted to said frame, 1 and a front bar pivoted to said frame and l to the steering head, a lower rear fork, an rear to the main frame and a rear bar pivupper rear fork pivoted to the lower fork near the wheel axle, a cushion interposed between the upper fork and said frame com prising a member pivoted to the frame, and a continuation of the lower fork pivoted to said frame. v g

12. The combination of a rigid frame 'carrying a motor and comprising a seat mounting, a steering. head pivoted tofsaid frame,

and a front bar pivoted to said fram and to the steering head, a lower rear fork oar- In testimony whereof I affix my signature rying a cranfir-hanger,{an1 upper rear fork in presence of two witnesses. pivoted to t e lower orr near the wheel axle, a cushion interposed between the upper EDWARD WHITE 5 fork and said frame comprising a member Witnesses:

pivoted to the frame, and a continuation of JAY M. ADAMS, the lower fork pivoted to said frame. L. R. ALLEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G." 

